The Sphere
type: MusicGroup
description: The Sphere (officially Große Kugelkaryatide N.Y., also known as Sphere at Plaza Fountain, WTC Sphere or Koenig Sphere) is a monumental cast bronze sculpture by German artist Fritz Koenig. The world's
popularity: 14
followers: 146
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3147cfe4fa337a57e2ee14b1e958ab857307cb773eff80ef7c33a6dc0a13658e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ac40985-a8fc-4ecb-8ee4-1a7e50c3e9c5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ac40985-a8fc-4ecb-8ee4-1a7e50c3e9c5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7ac40985-a8fc-4ecb-8ee4-1a7e50c3e9c5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3147cfe4fa337a57e2ee14b1e958ab857307cb773eff80ef7c33a6dc0a13658e","name":"The Sphere","registered_at":"2026-06-14T17:24:01Z","symbol":"NIM0523556","token_address":"0x992f49e1086ea9f28640bb9175215b6fee5ef10e","type":"artist","uuid":"7ac40985-a8fc-4ecb-8ee4-1a7e50c3e9c5"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3147cfe4fa337a57e2ee14b1e958ab857307cb773eff80ef7c33a6dc0a13658e. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ac40985-a8fc-4ecb-8ee4-1a7e50c3e9c5.json and https://artists.proofprofile.net/proofs/artist/7ac40985-a8fc-4ecb-8ee4-1a7e50c3e9c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0x3147cfe4fa337a57e2ee14b1e958ab857307cb773eff80ef7c33a6dc0a13658e","name":"The Sphere","registered_at":"2026-06-14T17:24:01Z","symbol":"NIM0523556","token_address":"0x992f49e1086ea9f28640bb9175215b6fee5ef10e","type":"artist","uuid":"7ac40985-a8fc-4ecb-8ee4-1a7e50c3e9c5"}
album: Time Will Make Fun of Us
  type: MusicAlbum
  date published: 1985-06-01
album: The Sphere 1986 (Live from Aosta)
  type: MusicAlbum
  date published: 1986-11-01
album: Inediti
  type: MusicAlbum
  date published: 1987
album: Dalla nostra parte
  type: MusicAlbum
  date published: 1987-06-01
album: Proviamo Ancora
  type: MusicAlbum
  date published: 1988
album: Dalla Nostra Parte (2025 Remaster)
  type: MusicAlbum
  date published: 2025-10-01